Home / 527,286,768.48-790,963,038-139,109,971.20

Finding the Fourth Proportional to 527,286,768.48, 790,963,038 and 139,109,971.20

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Solution

The fourth proportional to 527,286,768.48, 790,963,038 and 139,109,971.20 is: 208,673,632.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,286,768.48 : 790,963,038 = 139,109,971.20 : x
  2. Step 2: Convert to fraction form
    527,286,768.48/790,963,038 = 139,109,971.20/x
  3. Step 3: Cross multiply
    527,286,768.48x = 790,963,038 × 139,109,971.20
  4. Step 4: Simplify right side
    527,286,768.48x = 110,030,845,436,444,496
  5. Step 5: Solve for x
    x = 110,030,845,436,444,496/527,286,768.48
  6. Step 6: Final answer
    x = 208,673,632.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.